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-   -   Leyland Primes (x^y+y^x primes) (https://www.mersenneforum.org/showthread.php?t=19347)

pxp 2016-07-28 02:19

[URL="http://factordb.com/index.php?id=1100000000850777464"]L(13086,12769)[/URL]
[URL="http://factordb.com/index.php?id=1100000000850941215"]L(13981,8988)[/URL]
[URL="http://factordb.com/index.php?id=1100000000851611944"]L(14531,6912)[/URL]
[URL="http://factordb.com/index.php?id=1100000000851656234"]L(14754,5987)[/URL]

pxp 2016-08-03 21:57

[URL="http://factordb.com/index.php?id=1100000000851767024"]L(13636,12623)[/URL]
[URL="http://factordb.com/index.php?id=1100000000851917986"]L(13214,11595)[/URL]
[URL="http://factordb.com/index.php?id=1100000000851948227"]L(13725,8128)[/URL] = #1120
[URL="http://factordb.com/index.php?id=1100000000852385550"]L(13918,7343)[/URL]

pxp 2016-08-04 14:55

[URL="http://chesswanks.com/num/a094133.txt"]Index[/URL] has reached #1137 L(16636,1845).

pxp 2016-08-05 11:59

[URL="http://factordb.com/index.php?id=1100000000852429001"]L(14427,7396)[/URL]
[URL="http://factordb.com/index.php?id=1100000000852480741"]L(14569,6846)[/URL]
[URL="http://factordb.com/index.php?id=1100000000852495177"]L(14872,5229)[/URL]
[URL="http://factordb.com/index.php?id=1100000000852504740"]L(13582,13165)[/URL]

NorbSchneider 2016-08-08 15:57

I reached x=24,000 and found 6 new PRPs:
610^23017+23017^610, 64110 digits,
595^23148+23148^595, 64225 digits,
611^23586+23586^611, 65712 digits,
467^23596+23596^467, 62986 digits,
572^23601+23601^572, 65078 digits,
500^23793+23793^500, 64217 digits.

pxp 2016-08-09 20:32

[URL="http://factordb.com/index.php?id=1100000000852678562"]L(14210,6849)[/URL]
[URL="http://factordb.com/index.php?id=1100000000852809145"]L(14031,7670)[/URL]
[URL="http://factordb.com/index.php?id=1100000000852811060"]L(14289,6860)[/URL]
[URL="http://factordb.com/index.php?id=1100000000852947007"]L(15307,3958)[/URL]

pxp 2016-08-21 08:15

[URL="http://factordb.com/index.php?id=1100000000853430470"]L(14751,5006)[/URL]
[URL="http://factordb.com/index.php?id=1100000000854007165"]L(15023,4468)[/URL]
[URL="http://factordb.com/index.php?id=1100000000854315586"]L(16366,12925)[/URL]
[URL="http://factordb.com/index.php?id=1100000000854793067"]L(13860,8387)[/URL] = #1138

pxp 2016-08-23 16:34

[URL="http://chesswanks.com/num/a094133.txt"]Index[/URL] has reached #1179 L(17691,1508). I'm diverting my fastest processors to another long-term project. The gaps on which I will still be working are up a bit from the current index high so I don't see myself contributing another index update anytime soon.

XYYXF 2016-08-24 10:36

Updated the page (I hope correctly): [url]http://www.primefan.ru/xyyxf/primes.html#0[/url]

The range from 13001 to 15000 is now available for decimal length >= 56230 digits, i.e. most of the work here is already done :)

pxp 2016-08-25 15:41

[QUOTE=XYYXF;440581]Updated the page (I hope correctly): [url]http://www.primefan.ru/xyyxf/primes.html#0[/url][/QUOTE]

The (x,y) pairs and their decimal digit lengths are correct, as are the contributions attributed to me.

XYYXF 2016-08-25 15:44

Thanks for the check :)


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